tributary
[/ˈtrɪbjətɛri/ (noun), /trɪˈbjuːtəri/ (adjective)]
noun, adjectivemasculine (afluente)pl: tributaries
afluente
1. A river or stream that flows into a larger river or body of water
The Amazon River has many tributaries flowing from the Andes Mountains.
O Rio Amazonas tem muitos afluentes que fluem da Cordilheira dos Andes.
2. A state or region that is controlled by or pays allegiance to another power
The kingdom became a tributary state to the empire after the war.
O reino se tornou um estado tributário do império após a guerra.
3. (Adjective) Relating to or constituting a tributary; subsidiary or subordinate
The tributary relationship between the two nations lasted for centuries.
A relação tributária entre as duas nações durou séculos.
In Brazil, 'afluente' is primarily used in geographical, environmental, and scientific contexts, especially when discussing the Amazon Basin and its complex river system. The political meaning (tributary state) is more common in historical discussions of ancient empires or colonial relationships. The term is crucial in Brazilian environmental policy and water management discussions, particularly regarding the Amazon and other major river basins.
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